Word: 有效 (yǒuxiào)

医生正寻找对这疾病有效的药。

Yīshēng zhèng xúnzhǎo duì zhè jíbìng yǒuxiào de yào.

The doctor is looking for medicine that is effective for this illness.

这份工作录取仍然有效。

Zhè fèn gōngzuò lùqǔ réngrán yǒuxiào.

The job offer still stands.

这是快速且有效的交流方式。

Zhè shì kuàisù qiě yǒuxiào de jiāoliú fāngshì.

This is a fast and effective way of communication.

这条法律依然有效。

Zhè tiáo fǎlǜ yīrán yǒuxiào.

The law is still in effect.